6Alander P, Lassila LV, Vallittu PK. The span length and cross- sectional design affect values of strength[J]. Dent Mater, 2005,21(4):347-353.
7陈治清.口腔材料学[M].3版.北京:人民卫生出版社,2008:13-23.
8Issac L, Bhat S. Effect of re-using nickel-chromium alloy on its ultimate tensile strength, yield strength and modulus of elasticity [J]. Indian J Dent Res, 1998, 9(1):13-17.
9Peraire M, Martinez--Gomis J, Anglada JM, et al. Effects of recas- ting on the chemical composition, microstrueture, microhardness, and ion release of 3 dental casting alloys and titanium[J]. Int J Prosthodont, 2007, 20 (3) : 286-288.
10Horasawa N, Marek M. The effect of recasting on corrosion of a silver-palladium alloy[J]. Dent Mater, 2004, 20(4):352-357.